What characteristic does mistletoe possess regarding its growth?

Mistletoe is a hemiparasitic plant, which means it can photosynthesize its own food but also relies on other plants for water and nutrients. The characteristic that mistletoe possesses regarding its growth is that it has roots that penetrate the bark of trees. These specialized roots allow mistletoe to attach itself to the host tree and draw nutrients and water directly from the host's vascular system. This ability to penetrate the bark is crucial for its survival and growth, as it establishes a connection with the tree, which is essential for obtaining sustenance, especially in nutrient-poor environments.

In contrast, the option stating that mistletoe grows exclusively underground is incorrect because it primarily grows above ground, typically as a green shrub or cluster hidden among the leaves of its host tree. The idea that mistletoe does not have any roots is also misleading; while it lacks true roots in the sense of underground anchoring, it does possess these specialized attachment structures. Lastly, mistletoe is dependent on its host plant for support; thus, suggesting it needs no support from other plants is not accurate, as it relies on the trees it inhabits for growth and sustenance.